Gujarat is the largest producer of salt in India because
(a) It has extensive dry coast
(b) Its coastal waters are very saline
(c) It has extensive shallow seas
(d) Besides producing salt from saline water, it has reserves of rock salt
Solution: (a)
Gujarat, Tamil Nadu and Rajasthan are surplus Salt producing States accounting for about 96 per cent of the country’s production. Gujarat contributes 76 per cent to the total production, followed by Tamil Nadu (12 %) and Rajasthan (8%). The rest 4% production comes from Andhra Pradesh, Maharashtra, Orissa, Karnataka, West Bengal, Goa, Himachal Pradesh, Diu & Daman. The main sources of salt in India are sea brine, lake brine, sub-soil brine and rock salt deposits. Sea water is an inexhaustible source of salt. Gujarat is blessed with the longest coastline of 1600 km. in India, offering important resources such as salt and marine products for industry. Close to 60% of this is produced in Little Rann of Kutch. Little Rann of Kutch is a 5183 sq.km land mass having dual characteristics of saline desert and wetland.
Singhbhum is famous for
(a) Coal
(b) Iron
(c) Copper
(d) Aluminium
Solution: (b)
Singhbhum was sometime a large district in the present-day Indian state of Bihar. Chaibasa was the district headquarters of the erstwhile Singhbhum district. Singhbhum is known for its iron ore deposits and it provides for the iron ore requirements of the IISCO steel plants located at Hirapur, Kulti and Burnpur.
Which State of India has the largest reserves of monazite, with a high thorium content?
(a) Kerala
(b) Karnataka
(c) Gujarat
(d) Maharashtra
Solution: (a)
Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. Monazite is an important ore for thorium, lanthanum, and cerium. It is often found in placer deposits. The deposits in India are particularly rich in monazite. The DAE expects to gather at least a million tonnes of thorium from the beaches of Kerala and Orissa, which hold 70 per cent-plus of India’s estimated monazite reserve of 18 million tonnes.
Where has the Geological Survey of India located most of India’s Chromite?
(a) Cuttack
(b) Singhbhum
(c) Manipur
(d) Hubli
Solution: (a)
Over 97 per cent of total recoverable reserves of chromite have been found in Odisha. Orissa is the leading producing State of chromite, accounting for 99% of the total production. Production of chromite in Karnataka, Maharashtra accounts for the remaining 1% production. Chromite deposits of Sukinda and Nausahi ultramafic belt of Orissa constitutes 95% of the country’s chromite resources. Here chromite occurs as concentration and disseminations in the ultramafic rocks, in the form of lenses, pockets, thin seams and stringers. Sukinda, Sarubali and Sukrangi are all located in Cuttack district.
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